Comparison of Out of Africa theory to the Multiregional Continuity theory
The Multiregional Continuity Model says that due to Homo erectus leaving Africa, modern humans evolved from regional populations slowly.
Components:
Components:
Components:
- Some level of gene flow between geographically separated populations prevented speciation, after the dispersal.
- Humans derive from the species Homo erectus that left Africa nearly two million-years-ago.
- Natural selection in regional populations, ever since their original dispersal, is responsible for the regional variants (sometimes called races) we see today.
- The emergence of Homo sapiens was not restricted to any one area, but was a phenomenon that occurred throughout the entire geographic range where humans lived.
Components:
- After Homo erectus migrated out of Africa the different populations became reproductively isolated, evolving independently, and like the Neanderthals, into separate species.
- Homo sapiens came from one place, probably Africa.
- Homo sapiens migrated out of Africa and replaced all other human populations, without interbreeding.
- Modern human variation is a relatively recent phenomenon.